Otolaryngology & Dermatology 2009;22(1) : 120-132
六味地黃湯이 아토피피부염을 유발한 NC/Nga mouse에 미치는 영향
조재훈 ․ 김윤범
경희대학교 한의과대학 안이비인후피부과학 교실
The Effects of Yukmijihwang-tang on Atopic Dermatitis of NC/Nga Mouse
Jae-Hoon Cho ․ Yoon-Bum Kim
Objective : Yukmijihwang-tang is one of the important medicines for blood- deficiency and yin-deficiency.
Atopic dermatitis usually shows dampness-heat pattern in its acute stage and blood-deficiency or yin-deficiency pattern in its chronic stage. Therefore, I hypothesized that Yukmijihwang-tang is effective on atopic dermatitis and investigated the effects of Yukmijihwang-tang on NC/Nga mice's atopic dermatitis induced by DNCB.
Methods : The NC/Nga mice with atopic dermatitis were divided into four groups: three experimental groups and one control group. The experimental groups were respectively put on 2.5g(YM-2.5), 5g(YM-5) and 10g(YM-10) of Yukmijihwang-tang extract per their weight once a day for 10 days while the control group was fed normal saline. After 10 days, I measured TEWL(transepidermal water loss), observed scratching behaviors, conducted a skin biopsy and checked levels of Total IgE, IL-4 and IFN-ɤ on NC/Nga mice.
Results : 1. Yukmijihwang-tang significantly suppressed skin dryness. In particular, YM-5 and YM-10 had better skin hydration than YM-2.5.
2. Yukmijihwang-tang significantly suppressed pruritus while there was no significant difference among the experimental groups.
3. Yukmijihwang-tang retained skin structure(epidermis, dermis and subcutaneous fat).
4. Yukmijihwang-tang reduced Total IgE level while there was no significant difference between the control group and the experimental groups.
5. Yukmijihwang-tang did not reduce IL-4(Th2 cytokine) level.
6. Yukmijihwang-tang significantly reduced IFN-ɤ(Th1 cytokine) level. In particular, YM-2.5 and YM-5 had lower IFN-ɤ level than YM-10.
Conclusion : The results suggest that Yukmijihwang-tang suppresses skin dryness and pruritus, retains skin structure and is effective on chronic atopic dermatitis which is associated with Th1 cytokines in the immune response.
Key words : Yukmijihwang-tang, Chronic, Atopic dermatitis, IFN-ɤ
교신저자 : 김윤범, 서울시 동대문구 회기동 1번지 경희대학교 부속한방병원 한방안이비인후피부과 (Tel: 02-958-9181, E-mail: [email protected])
∙접수 2009/02/27 ∙수정 2009/03/28 ∙채택 2009/04/03